Strength envelope of symmetrically reinforced concrete members under bending–shear–axial loads

Lu, Yufeng; Huang, Liang; Zipeng, Xu; Yin, Peng

doi:10.1680/macr.14.00350

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Base on the equation of Hsu [6], Lu et al [37] proposed the equation that describe bendingshear interaction…”

Section: Strength Envelope Of Rc Columnsmentioning

confidence: 99%

“…( 35) with shear force in Eq. (37). The slip deformation (Δ 𝑠𝑙𝑖𝑝,𝑐𝑟 ) was determined by the proposed formula of Sezen [41] as illustrated in Eq.…”

Section: Cracking Pointmentioning

confidence: 99%

“…(32) respectively; 𝑉 𝑦 = 0.75𝑉 𝑚𝑎𝑥 ; 𝑉 𝑟 = 𝐿 × 100% ; where Δ 𝑐𝑟 , Δ 𝑦 , Δ 𝑚𝑎𝑥 , Δ 𝑐𝑜𝑙𝑙𝑎𝑝𝑠𝑒 were calculated by Eqs (33)(34)(36)(37)(38)(39)(40)(41)(42)…”

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confidence: 99%

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Shear strength model of large-scale reinforced concrete rectangular columns with light transverse reinforcement

Pham

2022

Asian J Civ Eng

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Columns with low transverse reinforcement, i.e., poor detail, small size, wide spacing are used commonly in the old buildings. It is often failed in shear with brittle mode that can lead to suddenly collapse entire building. Therefore, the exact determination of shear strength is significant for estimating the response of reinforced concrete (RC) columns under earthquake events. Based on four large full scale RC columns (8008003200)mm with low transverse reinforcement, the paper pointed out the factors that effect on shear strength, and proposed the revised shear strength equation, also the interaction diagram between bending moment (M) -shear force (V)-axial compression force (N) to design or check the shear ability of RC columns. Yet, the simple process to build the backbone curves and hysteretic loops was proposed and compared with tested results and test database.

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“…Base on the equation of Hsu [6], Lu et al [37] proposed the equation that describe bendingshear interaction…”

Section: Strength Envelope Of Rc Columnsmentioning

confidence: 99%

“…( 35) with shear force in Eq. (37). The slip deformation (Δ 𝑠𝑙𝑖𝑝,𝑐𝑟 ) was determined by the proposed formula of Sezen [41] as illustrated in Eq.…”

Section: Cracking Pointmentioning

confidence: 99%

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Shear strength model of large-scale reinforced concrete rectangular columns with light transverse reinforcement

Pham

2022

Asian J Civ Eng

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“…The interactions among these three loading types must be considered because they can induce a complex stress state when applied simultaneously to a structural element [6].From a safety point of view it is important that a RC structure especially its connections should have an adequate level of integrity and high carrying load capacity, in order to produce ductile behaviour that allows distribution of forces under expected loads and redistribution of forces after unexpected events, such as the loss of a ground column. For a robust RC building, local failure shouldn't lead to total collapse of the structure [7].…”

Section: Introduction and Related Workmentioning

confidence: 99%

Multiple Linear Regression Modelling for Predicting Building’s Short Columns Loads under Gravity

Abdulwahid¹,

Haddad²,

Tubaila³

et al. 2020

International Journal of Engineering Research and Technology

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This research is an attempt to understand and model the performance of short columns under different ground levels and storey number. This behaviour includes varying axial forced, shear forces, and bending moments under gravity loads. All the results have been taken for the columns at the ground level when the phenomenon of the short column has appeared. To study the performance of short columns under different ground levels and the number of stories, the 3D finite element by sap2000, and multiple linear regression analysis have been used in this study. The results show that the axial force for all types of short columns (internal, edge, corner) increases as the number of stories in the building increases at the same ground level. The effect of changing the number of floors with the same value of ground level is not significant in shear and moment for all types of columns except for the one-story and two-storey buildings. For more illustration, the moment and shear for a building composed of one story is very high compared to the two-storey building where the value becomes significantly low; then become higher again with a 3-storey building and with more stories.

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Assessment of Structural Robustness under Different Events according to Vulnerability

Chen

Huang

et al. 2016

J. Perform. Constr. Facil.

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Structural robustness is investigated in this study according to its opposite property, i.e., structural vulnerability, which is calculated as the assembly of component vulnerability measured by the vulnerability coefficient. Different types of vulnerability coefficients are suitable for both truss and RC frame structures. An importance coefficient based on the bearing capacity of the remaining structure is proposed to reveal the internal topology and failure scenarios, and is viewed as the weight coefficient of the corresponding vulnerability coefficient. The occurrence probability density function is introduced to describe the uncertainty of abnormal events and assess structural robustness under different events. Numerical examples of several idealized trusses and a RC frame are performed to demonstrate the use of the proposed robustness index. Analysis results show that the robustness index provided good explanation for robustness quantification for both truss and RC frame structures under different events. Moreover, two methods, i.e., increasing the local resistance and redundancy of the structure, to upgrade structural robustness also testify to the effectiveness and accuracy of the robustness index.

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Strength envelope of symmetrically reinforced concrete members under bending–shear–axial loads

Cited by 4 publications

References 8 publications

Shear strength model of large-scale reinforced concrete rectangular columns with light transverse reinforcement

Shear strength model of large-scale reinforced concrete rectangular columns with light transverse reinforcement

Multiple Linear Regression Modelling for Predicting Building’s Short Columns Loads under Gravity

Assessment of Structural Robustness under Different Events according to Vulnerability

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